I have, but not for a while. I am convinced it's fixed, and so do many others I've spoken to. There are a number of poker forums dotted around the net, they mostly come to the same conclusion. I can't remember the number of times I've been turned over on the river, bad beats it's normally called, I call it something else. I reckon you're playing against bots, especially in limit games, but it's better in no limit, but riskier.
Either way, I don't play any more.
Yeah I do play online but the unreal hands you get on there put me off a lot to be honest. I play on william Hill and I found the only way to win is to get on a high level table and only play a few hands then get out as I've noticed that you usually win more initially then your average goes down. I don't play online much for that reason but I do play a lot offline.
where there are a lot of basics of online poker explained and there are lots of good links to poker schools and it explains how you can get FREE money to play with.